When turning an airplane using only ailerons, the drag of the lowered aileron is greater that that of the raised aileron; this extra drag tend to yaw the airplane in a direction that's the opposite of what the pilot intended.
Some airplanes, especially high-wing airplanes with flat-bottom airfoils, have a tendency to yaw in the opposite direction of the bank. This is most common when flying at low speeds with high angles. Adjusting the ailerons can help reduce the yaw.
It is the down aileron that causes greater drag and pulls the plane in the opposite direction one would expect ie left stick rt aileron down and nose to the rt unless rudder is properly applied. A cub is a good example of this characteristic. To correct for this many computer radios will allow you to program in differential to give more up than down aileron. Report this Word See also: Aileron | Differential Throw Added by: mkranitz
The tendency of an airplane to yaw in the opposite direction of the roll. For instance, when right aileron is applied, the airplane yaws to the left, thus opposing the turn. Adverse yaw is common in trainer type airplanes having flat bottom wings. It is most noticeable at slow speeds and high angles of attack, such as during takeoffs and when stretching a landing approach. Caused by the unequal drag of the upward and downward deflection of the ailerons, this undesirable trait can be minimized by setting up the ailerons with Differential Throw or by coordinating the turns, using the aileron and rudder controls simultaneously. (See Differential Throw.)
This is the tendency for an aircraft to yaw in the opposite direction to a roll, ie when left aileron is applied the aircraft yaws to the left, opposing the roll. Solution is to set up differential aileron throws.